teleological argument Flashcards
epicurean hypothesis
-finite particles given infinite time will eventually form order
-Hume adapted idea from Epicurus greek philosopher
strengths of aquinas fifth way
-examples in nature of non thinking beings acting towards purpose- sunflowers turning to get sunlight
-arrow needs archer to direct it - reasonable to assume natural things directed to purpose
-need explanation for purpose- sign of conscious mind that plans an end within its design
weakness of aquinas fifth way
-other reasons for purpose- evolved to suit role, looks like design but less adapted beings died out
-assumption of purpose, could be due to chance or natural things dont have innate purpose, might be human construct
-caused logical fallacy, leap to god of classical theism
what did aquinas observe about world
things dont behave randomly but towards certain purpose or end ( telos)
example of goal directed beings in nature
sunlight moves towards sun to get more sun
-acorn can grow into oak tree
-water falls as rain and goes part of water cycle
-planets orbit sun
aquinas conclusion of things being goal directed
-not by chance that objects behave with purpose
-things in world cant direct themself towards telos
-thing cannot move without purpose unless intelligent being that has purpose in mind directed thing
arrow analogy
arrow hits target even though not intelligent
-must be something that can comprehend goal of arrow that influenced it to move that way
god directing things to purpose aquinas
-god directs behaviour of objects by creating natural laws which govern and regulate movement of objects
-god has power to make everything goal directed
-must be archer for arrow of universe which is god
P1 P2 and C1 of aquinas fifth way
-behaviour of objects goal directed towards an end because they follow natural laws
-natural laws cant create themselves because not intelligent
-natural laws must have intelligent designer- god
paleys pocket watch
-watch constructed with togs and clogs with purpose of telling time
design qua purpose
paley compares mechanical watch with natural things
-eyes
brain
fish fins
what did paley conclude from design qua purpose
-conclude of conscious mind intentionally designed purpose
-designer god
design qua regularity -
-consistent purpose shown everywhere in nature
-gravity
orbits of planets
arguments for paleys observations showing god exists
-a designer knows what they want to create, give creation purpose, purpose shows designer
-purpose seen in nature- birds, fish , eyes
-design qua regularity observed through order and patterns in nature, god behinf regularity
-even if watch broken, still designer behind watch
arguments for paleys observations not showing god exists
-Dawkins says natural selection blind process, no intention or purpose
-some natural things dont have purpose or poor design like wasp or human appendix
-law of entropy shows tendency to disorder so no designing mind
-to many faults in world to suggest god created it, volcanoes, murder
humes criticisms to analogies
-analogies can lead to mistaken conclusions, cant compare blood system to plants cells sap system
-philo from dialogues of natural religion shows how can you conclude to great god
-could there be many designers like how they build a ship
humes criticism with a posteriori arguments
-fallacy of composition- can apply observations to world cant apply to universe or entire world
-we cannot see or assume there is designing mind or god behind it
epicurean hypothesis as alternative reason to order of universe
-finite particles if given infinite time can fall into order by chance
-even though it may appear designed and arranged, due to constant motion and trial
-we can only observe current state because there is order
humes criticisms are right
-cannot assume just because watch has designer world has one to, no way of knowing
-design argument leap of logic to concluding monotheistic god
-design assumes intentional design rather than by random chance
-assumes fallacy of composition- whats true for a part true for whole
humes criticisms dont work
-similar effects have similar causes, paley argues even if we havent seen watch, we would still assume designer, same for world
-hume takes analogy to far, many people agree with argument but not god of classical theism
-it seems more credible to argue for design than chance- cant expect watch to throw in air and come together for purpose
-paley doesnt say world has design but things in it
Darwin and evolution
-natural selection
-survival of fittest
-less advantageous species die out and ones with advantageous mutations die out
how does evolution challenge teleological argument
-if species survived due to adaptation there is no need for designer god
-if evolution random process, against qua regularity and design
-challenges status and dignity of humans because evolved same way as animals
Dawkins in the blind watchmaker against paleys analogy
-argues evolution carried through random but cumulative mutations in DNA which produce variation in life
-process blind- no telos or plan
-therefore no need for designer god
arguments arguing evolution explains design in the world
-evolution challenged design argument, explains regularity and design as chance, natural selection
-world only appears designed because humans have given it design, gives a posteriori evidence of natural explanation
-evolution natural process so no foresight plan or purpose in mind, dont need to infer a designing mind